These, including circular ways round the towns to avoid the present unnecessary and congested passage through the towns, would act as ditches act in a fen. They would gather towards them the main streams of traffic, as such ditches gather towards them and drain the moisture of a fen. That having been done, the remaining difficulties upon the by-roads would be cut down to a quarter or less of their present evil. I will develop this. ii It is clear that our new vehicle, the internal combustion engine, will compel us to new roads, just as the vehicular traffic for passengers at the beginning of the seventeenth century compelled the creation of the turnpike. Far-seeing men grasped this the moment that the internal combustion engine appeared in our lives. I have myself heard the details of an idea which very nearly materialized and which was on the point of becoming law--an experimental road to be driven from one great centre to another, to be reserved entirely to the new traffic and to be made specially for these new necessities. Private interest defeated the scheme, and in my opinion that defeat was a very bad thing for the general development of the country. But though the first attempt failed, the very fruitful and sensible idea underlying it is worth describing. A very few great arterial roads joining up the main centres of population would have far more effect upon our present difficulties than their mere mileage would seem to warrant. There could be no question of stopping the new form of traffic upon the ordinary roads remaining, which in length might be twenty or fifty times those of the new roads. But it would be of such advantage for long-distance travel to use the great arteries that at the expenditure of greater mileage _you would find the new traffic seeking them at the nearest point upon one side and clinging to them for as long as possible_.